Use the information to answer the questions.

in triangle abc, a = 11 in., measure angle b=70 deg and

c = 9 in.

which information about the triangle is given?

Part 1) The length of two sides and the measure of the included angle (Side-Angle-Side)

Part 2)  

Part 3)

Step-by-step explanation:

we have

In the triangle ABC

Part 1) Which information about the triangle is given?

In this problem we have the length of two sides and the measure of the included angle (Side-Angle-Side)

see the attached figure to better understand the problem

Part 2) Which formula can you use ti find b?

I can use the law of cosines

we have

substitute the given values

Part 3) What is b, rounded to the nearest tenth?

Remember that

To Round a number

a) Decide which is the last digit to keep  

b) Leave it the same if the next digit is less than (this is called rounding down)  

c) But increase it by   if the next digit is   or more (this is called rounding up)

In this problem we have

We want to keep the digit

The next digit is which is 5 or more, so increase the "5" by 1 to "6"

therefore

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

10 you would take 50/ .2

step-by-step explanation: